baber/WOPTO huggingface dataset:
Patent EP-0434864-A1 (EP)
Inventor: PERSON GEORGE A
IPC: H01P1/00
Filed: 1989-12-29
Abstract: Spurious cavity resonance effects in a cabinet housing electronics circuitry are suppressed by determining the maximum repetition rate or frequency for legitimate signals which can appear in the circuitry and then establishing the dimensions of each cavity within the cabinet such that each cavity's resonant frequency is less than the critical repetition rate/frequency. Since a given cavity in a cabinet is typically block-shaped (such as the space between a cabinet door and the circuit panel facing the door), a special purpose formula may be employed to obtain a good approximation of the cavity's resonant frequency, and the cavity dimensions then adjusted to raise the cavity resonant frequency above the critical frequency. For the still more particular cavity configuration in which the length is greater than the width which is much greater than the depth, a further simplified formula can be employed to find an approximate cavity resonant frequency. In addition, for the common configuration in which one or more significant intrusions reduce the cavity volume, a more complex formula may be employed to find its approximate resonant frequency with the cavity dimensions then being adjusted to raise that approximate resonant frequency above the critical frequency. The method may be employed either in the design stage or at a remedial stage.
Patent EP-0407661-A1 (EP)
Inventor: VAN SWIETEN ANDREAS PETRUS
IPC: C08J5/24
Filed: 1989-07-11
Abstract: A curable composition comprising at least one biscitraconimide unit having the formula:
      wherein D is a divalent group, R is CH₂-R₁, and R₁ is independently selected from the group consisting of hydrogen and alkyl groups having 1 to 18 carbon atoms, characterized in that the composition comprises a sufficient amount of an anionic curing catalyst to convert at least 10% of the R groups on the biscitraconimide units into alkylene bridges in the cured composition, is disclosed. A process for curing the foregoing composition is disclosed as well. Also disclosed is a polymeric material obtained by the process of curing the foregoing composition as well as objects embodying this cured polymeric material. The polymeric material may also be cocured in the presence of one or more polymerizable materials. The polymeric material obtained exhibits significantly improved tensile strength and flexural strength over typical bismaleimide polymers which makes it useful for preparing fiber-reinforced materials.
Patent EP-0426917-A1 (EP)
Inventor: PIA FRANCESCO A
IPC: B63B35/79
Filed: 1989-11-09
Abstract: A water craft (10) is of one-piece construction having a bow section (11) provided on the underside with a pair of parallel runners (13) and a recessed central portion (14). In addition, the craft has a stern section (12) which narrows toward the rear and which has a chine (16) on the underside in spaced relation to the runners (13) to provide two channels (17) for a flow of water. The stern section (12) also has a flat deck (19) for seating or standing of a user thereon depending upon the use of the craft (10), for example, as a rescue craft or as a sail boat.
Patent EP-0333559-A1 (EP)
Inventor: PRIGENT MICHEL
IPC: B01J23/10
Filed: 1989-03-08
Abstract: Catalyst for the treatment of exhaust gases of internal combustion engines of the monolithic type comprising a support or substrate coated with a porous layer onto which a catalytically active phase is impregnated, the porous layer comprising alumina, a rare-earth oxide such as cerium oxide and a spinel-type compound exhibiting a specific surface of between 50 m<2>/g and 300 m<2>/g.
Patent EP-0349656-A1 (EP)
Inventor: HYON SUONG-HYU
IPC: A61L31/06
Filed: 1988-12-27
Abstract: A surgical material which is dea absorbable in vivo comprising a molecularly of polylactic acid or a copolymer of acid, which has a compression bending strength at to 10 3  to 2.5 x 103 kg/cm 2 , compression bending models of 5 5 102 to 24.0 x 10 2  kg/mm 2 , a crystallinity of 10 to be as determined by densitometry, and a viscosity-average molecular weight of 200,000 or more after melt-molding and which can maintain 80 % or more of the initial strength even after being dipped in physiological saline at 370 for 3 months.
Patent EP-0343238-A1 (EP)
Title: Onduleur de courant continu en courant alternatif avec neutre
Inventor: DHYANCHAND JOHN J
IPC: H02M7/48
Filed: 1988-11-16
Abstract: L'invention concerne un onduleur (16) permettant de produire une sortie monophasée ou triphasée avec neutre (N). Un circuit résonant LC (14) est commuté sélectivement par l'onduleur (16) pour produire une phase ou trois phases ayant une fréquence fondamentale égale à la fréquence de chaque circuit de commutation (32, 34, 36) dans les phases de l'onduleur. Les sorties sont filtrées dans un filtre (42, 48 et 54) pour éliminer les harmoniques supérieures et passer la sortie filtrée à une charge (26). L'énergie est renvoyée dans le circuit résonant en court-circuitant les circuits de commutation via un commutateur (Q7) au moment où la tension de sortie sur un circuit de commutation (32, 34, 36) est égale à zéro pour réduire au minimum les pertes de commutation.
Patent EP-0400043-A1 (EP)
Inventor: STEFFENSEN ANTON SKYTT
IPC: F28D9/00
Filed: 1989-01-26
Abstract: Procédé d'assemblage en parallèle par brasage de deux plaques métalliques au minimum percées chacune d'au moins un trou, en particulier pour réaliser un échangeur de chaleur à plaques, qui consiste à braser les plaques en question en les maintenant parallèlement l'une à l'autre, les trous étant maintenues l'un en face de l'autre au moyen d'une pièce de fixation recourbée sur les bords desdits trous. Pendant le brasage, la pièce de fixation maintient en place les plaques de métal de manière à ménager de très petits interstices entre les côtés de la pièce de fixation et les plaques, de même qu'entre deux plaques consécutives. En outre, la pièce de fixation peut servir de dépôt pour le métal d'apport de brasage, à l'endroit du joint de brasage.
Patent EP-0360847-A1 (EP)
Title: Curcumine de detection et d'avertissement d'alteration de produits alimentaires par cyanure
Inventor: GREENBERG MICHAEL J
IPC: A23G4/18
Filed: 1989-01-30
Abstract: On utilise la curcumine afin de détecter, et d'avertir de la présence de cyanure dans un produit alimentaire, un médicament ou toute autre composition orale. On peut ajouter la curcumine à la composition ou l'incorporer dans une matière d'emballage, de préférence sur le côté au contact du produit emballé dans ladite matière, ou à proximité dudit côté. En présence de cyanure, la curcumine présente un changement de couleur d'au moins une partie du produit alimentaire, du médicament ou de la composition orale, de la matière d'emballage ou des deux. Le changement de couleur est suffisant pour être détecté par un observateur, avertissant ainsi de l'altération du produit par du cyanure. On peut également prévoir un message imprimé afin d'empêcher la consommation de la composition lors de la détection du changement de couleur.
Patent EP-0374199-A1 (EP)
Inventor: TRENTADUE FREDERICK
IPC: B23D45/02
Filed: 1989-02-07
Abstract: Un outil coupant (10) tel qu'une scie pour carrelage est relié de manière pivotante à une tige de guidage linéaire (28) pourvue d'un quadrilatère articulé. Ce quadrilatère permet le soulèvement et l'abaissement de l'outil coupant (10) sur une table porte-pièce (18) afin de faciliter la découpe en plongée. Un articulation (54) du quadrilatère articulé (98) est montée sur la tige de guidage linéaire (28) dans une relation perpendiculaire fixe avec la surface de la table porte-pièce (18) afin de garantir que la lame (45) de l'outil coupant (10) soit maintenue dans une orientation perpendiculaire similaire tout au long de la découpe en plongée. On y parvient en réglant en parallélogramme les articulations (54, 32, 64, 86) du quadrilatère articulé (98). Un coussinet linéaire (36) est monté entre l'articulation perpendiculaire fixe (54) et la tige de guidage (28) afin de permettre le libre coulissement de l'outil coupant (10) et du quadrilatère (98) le long d'une trajectoire de découpe linéaire précise.
Patent EP-0410982-A1 (EP)
Inventor: WEBER GISELA
IPC: B60P1/44
Filed: 1989-04-12
Abstract: Un dispositif hydraulique démultiplicateur de pression pour faire pivoter une plate-forme porte-charge, notamment la paroi du côté de chargement hydraulique d'un véhicule, comprend un cylindre hydraulique (1) dans lequel se déplace un piston (2) et dont les chambres (3', 3'') sont en communication par des conduits avec un cylindre de levage et avec un cylindre de pivotement de la plate-forme. Dans ces conduits de liaison sont agencées au moins une soupape d'abaissement (15) et une soupape de commutation (6), logées dans des alésages (5) d'une section frontale du cylindre hydraulique (1), cette section contenant les raccords (7', 8', 11, 14) pour les cylindres de levage et de pivotement, pour l'amenée de fluide hydraulique et pour un conduit de refoulement dans le réservoir, ainsi que les conduits de liaison. Au moins un des conduits de liaison (5', 4) mène à une des deux chambres du cylindre situées de part et d'autre du piston.
Patent EP-0403583-A1 (EP)
Inventor: SCHUMACHER ROBERT W
IPC: H01J25/00
Filed: 1989-03-06
Abstract: Dans un tube à ondes de plasma, et selon un procédé associé de fonctionnement, une paire de générateurs de faisceaux d'électrons à cathodes froides déchargent des faisceaux (2, 4) d'électrons à contre-propagation dans un gaz ionisable, de préférence de l'hydrogène ou un gaz noble, contenu dans le boîtier (6) d'un guide d'ondes. On applique aux cathodes (14, 16) une tension comprise approximativement entre 4 et 20 kV par rapport au boîtier du guide d'ondes, afin de produire des faisceaux d'électrons dont la densité du courant s'élève à au moins 1 amp/cm2 environ. Les faisceaux forment un plasma (8) à l'intérieur du gaz et se couplent avec celui-ci, produisant des ondes électroniques de plasma non linéairement couplées afin de rayonner de l'énergie électromagnétique dans le domaine des microondes aux mm-ondes. Un champ magnétique s'établit dans le guide d'ondes entre les cathodes, confinant le plasma et commandant l'impédance de décharge du faisceau. La pression du gaz est maintenue approximativement entre 1 et 100 Torr, de préférence entre 10 et 30 Torr, afin d'amortir des instabilités du plasma et de soutenir les tensions des faisceaux, alors que le champ magnétique se situe entre 100 et 500 Gauss environ. On obtient un pivotement ou une compression-expansion très rapides avec un champ magnétique relativement fort qui limite l'impédance de décharge à l'extrémité inférieure de la plage admissible. On obtient une fréquence stabilisée de fonctionnement avec un champ magnétique réduit qui augmente l'impédance de décharge, de sorte que le courant des faisceaux change très lentement dans le temps.
Patent EP-0450070-A1 (EP)
Inventor: ISHII TOSHIO
IPC: C23C6/00
Filed: 1989-10-25
Abstract: This invention relates to a plating method consisting of the steps of placing a solid phase plating metal on an object surface of a metal plate being fed, melting the plating metal with the heat of the metal plate, and depositing the molten plating metal in the form of a film on the object metal plate surface. According to this plating method, a molten metal bath is not required at all, and a plating film using a molten metal can be obtained without troubling an operator about various problems arising from a plating operation using a molten metal bath. <IMAGE>
Patent EP-0394609-A1 (EP)
Inventor: BELMONDO DOMENICO
IPC: B43K23/12
Filed: 1990-01-12
Abstract: A cap for writing implements comprises a hollow lower body (10) jointed at one end to a hollow upper body (12), ending on top (13) with a closed end having a smaller section; openings (C, C') for the communication of the lower inner hollow body with the outside are obtained in correspondence with the jointed length; said openings alternate to sides extending from said jointed length, which are substantially parallel to the hollow upper body to form ducts (C) stretching out towards said closed end where further communication openings are realized between the inner lower hollow body and the outside.
Patent EP-0388627-A1 (EP)
Inventor: SCHMIDT PAUL DIPL-ING
IPC: E21B11/02
Filed: 1990-02-12
Abstract: Drop hammer with a striking piston (8) which is axially displaceable in a housing (1) and whose forward and return movement is controlled by a control sleeve (3), engaging in a cylinder space (9) of the striking piston (8) and connected to a supply hose (10), and by one or more corresponding control ports (11) in the striking piston (8), in which arrangement the control sleeve (3) is acted upon both axially and in a rotary manner, has axial and rotary stops (14, 18) and is guided in a rotatable and axially displaceable manner in a guide sleeve (5) arranged at the rear end of the housing (1). …<IMAGE>…
Patent EP-0409046-A1 (EP)
Inventor: KOHLMANN HELMUT
IPC: B65H31/00
Filed: 1990-07-10
Abstract: In a sheet delivering device for printing machines, an auxiliary delivery table is inserted above the main sheet stack into the region of the sheets to be delivered in order to remove a main sheet stack (7) when the printing machine is running. In a region of the trailing edge of the stack, oscillating sheet stops (18, 19) are provided which align the trailing edge of the delivered sheets, in which arrangement they act simultaneously on the trailing edges of the sheets of the main stack (7) and on the trailing edges of the sheets (25) delivered onto the auxiliary stack table. <IMAGE>
Patent EP-0413339-A1 (EP)
Inventor: BEHJATI BARATOLLAH DR
IPC: A61F13/04
Filed: 1990-08-16
Abstract: A composite material for making supporting dressings or supporting structures for medical use consists of a porous flexible carrier which is impreg­nated with an aqueous polymer dispersion, the polymer particles of which are capable of film formation on removal of water. This composite material can be stored in waterproof packaging, in the state ready for use.
Patent EP-0435057-A1 (EP)
Title: A wafer shape detecting method
Inventor: AMETANI MINORU
IPC: H01L21/68
Filed: 1990-12-10
Abstract: This invention is concerned with a method for the wafer shape detecting which is capable of detecting the contour of the wafer relatively easily, and capable of positioning by recognizing the contour of the wafer accurately even if the wafer is more or less eccentric.
Patent EP-0405631-A1 (EP)
Inventor: KILNER DAVID NICHOLAS
IPC: C03B19/10
Filed: 1990-06-06
Abstract: Apparatus for heat processing of particulate material, in particular crushed glass to form glass beads, comprises a generally cyclindrical furnace (1) having a canopy (27) providing an exhaust gas outlet (60). A gas/air mixture is fed to the furnace (1) through a central burner and is ignited to form a flame in which the combustion gases have a speed of less than 10 m/s. A current of air is introduced by fans (18) through inlets (16) into the furnace (1) and forms a quenching zone in which the current of air swirls around the flame. Particles of crushed glass are fed by a screw feeder (39) into a chamber (41) in which they are entrained in a current of air from a compressor (43) and thereby introduced into the furnace (1) through nozzles arranged around the burner. A further gas/air mixture is introduced into the furnace (1) at a position spaced radially outwards from the central burner. The particles of crushed glass follow a trajectory through the hot central portion of the flame, where they form beads, into the quenching zone and are either collected through outlet ports (22) in the floor of the furnace (1) or from the exhaust gases by means of a cyclone.
Patent EP-0464269-A1 (EP)
Inventor: AVONTS KRIS PETRUS
IPC: B41J2/455
Filed: 1990-07-03
Abstract: A LED exposure head for use in a recording apparatus for linewise recording information on a moving photoreceptor, which exposure head is mounted within a housing (15) composed of three extrusion-moulded elongate metal sections (29, 34, 35) and two injection-moulded end members, two sections (34, 35) being connected together in parallel relationship by means of the end members to constitute the cover (30) of the housing with an elongate slot-like opening (59) for the location of a lens array (60), the end members being arranged for fixing the cover to the base and also for co-operation with a mount on a wall of the apparatus for the adjustment of the correct position of the exposure head in the recording apparatus.
Patent EP-0389074-A1 (EP)
Inventor: LENZE FRIEDRICH DR-ING
IPC: E21B17/042
Filed: 1990-03-14
Abstract: The invention relates to a pipe connector having threaded pipes (5, 6) which have a cylindrical threaded section (7, 8), designed as a journal part, and a sleeve (1), connecting the pipes, which has threaded sections, designed in a manner which is complementary to said pipes, and an unthreaded section located between them. The threaded sections of the pipes and of the sleeve have a different pitch and their length is also different, so that, on the one hand, the mutually abutting end faces of the pipes form a sealing seat and, on the other hand, the threaded section (8) of the pipe (6) is covered over the complete length of the sleeve (1) in the initial position and in the screwed-together state. <IMAGE>
Patent EP-0397305-A1 (EP)
Inventor: AMMON ROBERT LEROY
IPC: F42B12/74
Filed: 1990-03-15
Abstract: A method of making a tungsten tantalum material comprising generally 80 percent by weight tungsten and 20 percent by weight tantalum and forming the material into a high strength full density round bar (15), which can be utilized in a high velocity armor penetrator.
Patent EP-0393966-A1 (EP)
Inventor: NAKAGAWA HIDEMITSU
IPC: B60C15/00
Filed: 1990-04-17
Abstract: A pneumatic radial tire having at least one carcass ply (10), distal ends of which are folded back axially outwardly about a pair of bead cores (12) to form respective turn-up portions (10A). A hard rubber sheet (29) is disposed on the outer side of each turn-up portion in such a manner as to partially overlap with the same in a mutually spaced-apart relationship, and a soft rubber material (30) which is softer than the hard rubber sheet is interposed between the turn-up portion and the hard rubber sheet, thereby reducing the amount of stress and heat occurring in the vicinity of the end portions of the turn-up portions of the carcass ply.
Patent EP-0400861-A1 (EP)
Inventor: OBIKAWA TSUYOSHI
IPC: C07D319/06
Filed: 1990-05-22
Abstract: A 1,3-dioxane derivative of the general formula:
     wherein, R is a straight chain alkyl group of 1 to 10 carbon atoms, A is a single bond or a -CH 2 -CH 2 - group, X is F or CN, Y is either F when X is CN or H or F when X is F, and the cyclohexane ring and the 1,3-dioxane ring are each in the trans configuration.
Patent EP-0420604-A1 (EP)
Inventor: LEICHT JOHN LAURENCE
IPC: H05K1/18
Filed: 1990-09-26
Abstract: An adhesive interconnection device of Figure 2 (115) providing a simplified simultaneous electrical and mechanical interconnection using one preformed member, comprised of a pattern of non-pressure activated electrically conductive adhesive members (140) and nonconductive adhesive members (145), which must be aligned with the conductive pads of at least two planar electrical devices (100 and 105). Sandwiching the device (115) between at least two electrical devices causes simultaneous electrical conduction paths and mechanical bonds (230) between the two electrical devices. An additional heat curing step may be introduced to achieve the proper conductivity level in the electrically conductive members required for a specific application.
Patent EP-0496901-A1 (EP)
Inventor: ROY DHIRENDRA C
IPC: H01R33/09
Filed: 1990-12-31
Abstract: A subminiature terminal ( 10 ;  Figs. 5  and  6A  &  6B ) for mechanically holding and electrically interconnecting a wedge-base bulb ( 1 ;  Figs. 1  &  2 ) into a circuit in, for example, an automotive application, in which the electrical and mechanical retention forces balance out, in a preferred manner ( Figs. 4  &  4A ), preventing undesired rotation (tilting) of the bulb held between opposed terminal pairs seated in a connector system (not illustrated). The terminal includes conductor and insulation grips ( 11 ), a body or base ( 12 ) (the structural part), a mechanical retention spring ( 13 ), and an electrical contact spring ( 14 ). The mechanical retention spring is a leaf spring clamped at the rear and dimensioned to hold the bulb at its detent; while the electrical contact spring is a torsion spring on the opposite side approximately a one half winding ( 14A ) formed between two lever arms, one lever arm ( 14B ) clamped at the front of the terminal, while the other one ( 14C ) is essentially free to deflect, as required by the wedge-base ( 3 ) of the bulb ( 1 ) to ensure electrical contact independent of filament wire deformation or its history. The free arm is smooth along its length and in particular in its contact surfaces with its respective filament wire.
Patent EP-0392935-A1 (EP)
Inventor: COMAR GILLES
IPC: A01M25/00
Filed: 1990-04-17
Abstract: The bait-box (10) comprises three elements (1, 2, 3) forming flaps of which two (2, 3) can be hinged against each other and fastened to each other in order to form with the third, intermediate flap (1) a box (10) of triangular section open at each of its ends, the inner face (1a) of the third flap forming a receptacle for a rodenticide or similar product. Application to the destruction of rodents such as mice or rats. <IMAGE>
Patent EP-0415809-A1 (EP)
Inventor: GONZALEZ SERGE
IPC: C09D5/25
Filed: 1990-07-26
Abstract: Compositions de précurseurs de polyimide comprenant au moins un composé de formule (1), au moins un composé de formule (2), au moins un composé de formule (3) et au moins un composé de formule (4) <IMAGE> dans lesquelles l'un des groupes R³ et R<4> représente un atome d'hydrogène et l'autre, de même que les groupes R¹ et R², identiques ou différents, représentent chacun un groupe hydrocarboné ayant de 1 à 16 atomes de carbone, m est un nombre de 5 à 20, n est un nombre entier de 1 à 5 et R<5> représente un atome d'hydrogène, un atome d'halogène, un groupe hydrocarboné ayant de 1 à 16 atomes de carbone, ou un groupe de formule R<6>-O-dans laquelle R<6> représente un groupe hydrocarboné ayant de 1 à 16 atomes de carbone. La composition préférée contient de 30% à 70% en poids de matière sèche des composés de formules (1), (2) et (3) dans lesquelles les groupes R¹, R² et l'un des groupes R³ ou R<4> est un groupe méthyle ou éthyle et le composé de formule (4) est l'alcool benzylique. Ces compositions sont utilisables comme revêtements d'aplanissement et/ou de protection des métaux, des alliages métalliques ou d'autres substrats et en particulier dans le domaine des industries électriques et électroniques par exemple pour former des films diélectriques.
Patent EP-0406138-A1 (EP)
Inventor: ROUSSEL ALAIN
IPC: A01J25/02
Filed: 1990-06-01
Abstract: Trough of a cheese making vat is made semi-cylindrical with semi-hemispherical ends so it has a smooth internal surface without discontinuities or dead areas. It is fitted with longitudinal and transverse curd cutting devices which follow the controus of the vessel closely and pass through the curd only once. …-ADVANTAGE - Less fragmentation of curd cubes reduces loss of small particles into the whey improving yield. Vessel cleaning is also facilitated.